AirHint found the following cheapest return flights from Hong Kong (HKG) to Barcelona (BCN) in December 2025 (see full year).

Return flights

29 Dec - 15 Jan	Air China
26 Dec - 11 Jan	Etihad Airways
17 Dec - 07 Jan	Air China
24 Dec - 08 Jan	Air France
25 Dec - 08 Jan	Air France
08 Dec - 16 Dec	Air China
25 Dec - 31 Dec	Etihad Airways
17 Dec - 25 Dec	Air China
10 Dec - 17 Dec	Air China
12 Dec - 16 Dec	Air China
15 Dec - 31 Dec	Etihad Airways
08 Dec - 15 Dec	Etihad Airways
22 Dec - 31 Dec	Etihad Airways
11 Dec - 18 Dec	Air China
23 Dec - 31 Dec	Etihad Airways
27 Dec - 08 Jan	Air France
27 Dec - 05 Jan	Emirates
20 Dec - 01 Jan	China Eastern
24 Dec - 01 Jan	Hainan Airlines
23 Dec - 01 Jan	Hainan Airlines

Also check the deals for one-way flights from Hong Kong to Barcelona in December.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Hong Kong to Barcelona in December from $465

Return flights